Table 5.

The mean distance of different motor symptom improvement rate groups in the MNI space from the active contacts to the STN subregion [M (IQR), mm]

Group	Number of cases	Left			Right
		STN motor subregion	STN associative subregion	STN limbic subregion	STN motor subregion	STN associative subregion	STN limbic subregion
Improvement rates < 25% group	5	0.2 (1.2)	1.4 (1.1)	1.5 (1.5)	0.4 (1.2)	1.7 (1.4)	0.4 (1.0)
Improvement rates 25–50% group	11	0.1 (1.4)	0.7 (1.4)	1.9 (0.9)	0.1 (0.6)	0.6 (1.2)	0.5 (0.8)
Improvement rates > 50% group	41	0.1 (0.4)	0.8 (1.2)	0.9 (1.1)	0.2 (0.5)	1.1 (1.1)	0.9 (1.5)
Kruskal-Wallisχ2		0.251	1.693	0.255	2.200	4.158	2.908
P		0.882	0.429	0.881	0.333	0.128	0.234